Apparatus for forming saggars.



PATENTED MAY 9, 1905.

' W. POLK.

APPARATUS FOR PORMING SAGGARS.

APPLIOATION FILED JUNE 9. 1904.

3 SHEETS-SHEET 1.

gli /44 PATENTED MAY 9, 1905.

W. POLK.

APPARATUS FOR FORMING SAGGARS.

APPLICATION FILED JUNE 9. 1904.

3 SHEETS-SHEET 2.

FIG. 2

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APPARATUS FOR FORMING SAGGARS.

APPLICATION FILED .TUNE 9, i904.

8 SHBETS-SHIIBT 3.

, /ML f 4 w @QW lille. 789,563.

Patented May 9, 1905.

artnr VILLlAM FOLK, OF FAST LIVERPOOL, OHIO.

APPARATUS FGW FOFHWING SAGGARS.

SPECIFICATION forming part of Letters Patent No. 789,563, dated May 9,1905.

Application iled lune 9, 1904. Serial No 211,817.

Be it known that l, ILLIAM Penn, a resident of East Liverpool, in thecounty of Oolumbiana and State el' Ohio, have invented a new anduse'i'ul Improvement in Apparatus .tor .Forming Saggars g -and lf dohereby declare the following to be a liull, clear, and exact dcscriptionthereof.

Myinventionrelates to apparatus lor l'orming saggars and other hollowbowls, and more especially to certain improvements on an apparatus forwhich l'iiled an appl ication ior Letters Patent ol' the United Stateson the 24th day of July, i903, Serial No. 166,884.

'l`o enable others skilled in the art to make and use my invention, flwill describe the same with reference to the accompanying drawings, 1nwhich Figure l. is a iront elevation. Fig. 2 1s a side view on areducedv scale. Fig. 3 is a sectional View taken on the line 3 3, Fig.2, looking in the direction ol" the arrow. Fig. 4 is an enlargedlsectional view of the upper and. inner meld. Fig. 5 is a view ol" themechanism lor lowering the niovable portion of the bottoni el" the.lower mold, the lower mold being shown in section. Fig. (i is a view ofthe guide-plate l'or the movable central portion ol the plunger.

Like numerals indicate like parts in. cach of the figures.

The numeral 2 designates a suitable base er support upon which iserected. the l'rame' 1S is connected to the cross-headv 14, the lowerend ol said crosshead being connected to the yoke 19 ol the plunger 20,said. yoke being connected to said plunger by means oi the bolts 2l.,passing through lugs 22 on said yoke.

Guide-rods 23 are mounted on the base 2, said guide-rods acting asguides for the plunger 2() and the mold 24. The yoke 1) has the guides25, which engage the guide-rods 23, while the mold 24 has the guides 26,which also engage said rods. The plunger 20 and mold 24 are adapted toapproach each other, moving in opposite directions, so that the oneenters within the other, and to previde for this lmovement the levers 27are fulcrumedv at 28 to the standards 2Q, the opposite ends ol saidlevers having the slots 3U, which engage the pins 3l. on the guides 25.

.Links 32 connect the levers 27 through the levers 33, luleruined at 34upon the brackets 35, secured to the standards 3. The outer ends oilvthe levers 33 have the slots 36, which engage pins S7 on the guides 26ol" the mold 24. By this constructioii as the plungerrod is raised andlowered the plunger and mold 24 approach each other simultaneously untilthe plunger passes within. the mold, as indicated in Fig. 2.

'lhe plunger 2l), clearly illustrated. in Fig. 4, comprises the outershell. 3S and the inner shell 39. Secured to the inner shell T) theialse bottom 40, which. is adapted to move with the inner shell 3S)independently et the outer shell 36%. Tithin the inner shell 3) is thesupplemental plunger 4l.. A rod 42 engages a .recess 43 in thesupplemental plunger 4l, said .rod having the pin 44 within the enlargedportion 45 ol" the recess 43. A plate 4G, secured to the supplementalAplunger by the screws 47, prevents the withdrawal of the rod 42 fromthe supplemental plunger 411. A spring encircles the Arod 42 and isinterposed between the plate 46 and plate 49, secured to the upper endelE the inner shell l) of the plunger. This plate, as indicated inv Fig.G, has a slot 5() formed therein, said slot having the enlarged circularportion A key 52 .is driven through the vrod 42, said key being adaptedto rest normally u ponv the plate 49, but being adapted when turned teenter the slot 50, all as fully hereinafter set forth. Secured to theupper end of the rod 42 is the arm 53, said arm being secured to saidrod 42 by the nuts 54. A spring 55 is connected with the one end of thearm 53, the other end of said spring being secured at 56 totheguide-lever 27. This arm 53 is arranged at an angle with reference tothe yoke 19 of the plunger and at the same angle as the key 52 in therod 42.

Rods 57 connect the false bottom 4() to the inner shell 39 of theplunger, said rods also acting to hold the plate 49 in position, andextending up are connected to the plate 58, which encircles theplunger-rod 18 and being adapted to move up and down on saidplunger-rod. Lugs 59 on the plate 58 havel the pin 60, adapted to engagethe slot 61 in the lever 62. This lever 62 is fulcrumed at 63 upon thearm 64, secured to the yoke 19, so that said lever will be carried downby the plunger. The outer end of the lever 62 has the weight 63 securedthereto. Bolted to the guides 17 is the bar 62", with the shoulder 62h,with which the lever 62 is adapted to engage. The lever 62 hassufficient lateral play to be readily released from said shoulder, so asto assume the position indicated in dotted lines, Fig. 1.v The rods 57are also connected to the cross-arm 66, from which depend the rods 67,which are connected to the stripper 68, which encircles the plunger 20and which is adapted to strip the saggar therefrom, all as fullyhereinafter set forth. The rods 67 have the pins 69, and between saidpins and the cross arm 66 are the springs 70.

Depending from the plunger 29 is the tripper-arm 71, with thetripper-finger 72 at the lower end thereof controlled by the spring 7 3.Pivoted at 75 to the mold 24 is the arm 74, said arm having thetripper-fingcr 76 in the path of the tripper-finger 72 of the arm 71. Aspring 77 connects the tripper-arin 76 with the arm 74. By thetripper-nger 72 coming Iin contact with the tripper-Hnger 76 the upperend of the arm 74 is thrown over into position to engage the arm 53 andto shift said arm slightly for the purpose fully hereinafter set forth.

The mold 24 has the movable bottom 78, which rests upon the standard 79.Connected to the bottom 78 is the yoke 81, which has the collar 82,adapted to slide up a-nd down on the standard 7 9. On the collar 82 isthe projection 82a in the path of the mold 24 on its descent. A lever 83is connected to the collar 82, said lever being fulerumed at 84 andhaving the weight 85 at the outer end thereof. This weight acts tonormally lift or raise the bottom 78 from the standard 79. In additionto the means for raising the bottom 78 by means of the weight 85 l einploy the following auxiliary means: An arm 86 is secured to the yoke 81,said arm having the lip 87, which is adapted to engage the recess 88 inthe lower end of the swinging arm 89, which is hung at 90 from theplunger. The lugs 91 and 92, which form the recess 88, are beveled, sothat the mold will act to release the arm 89 from the lip 87 of the arm86 when said mold descends, as fully hereinafter set forth. By thuslocking the movable bot tom 78 to the yoke 81 it is apparent that as theplunger ascends the bottom 78 will ascend with it until the mold 24 hasdescended sufficiently to trip the arm 89 and release said bottom fromthe yoke 81.

ln the operation of forming saggars with the above apparatus the clayfrom which the saggars are formed is placed upon the bottom of the mold24, whereupon the clutch 6 is thrown to drive the pinion 7 and 8, whichthrough the gearing illustrated acts to lower the plunger-rod 18,carrying with it the plunger 20. The operator before the descent of theplunger releases the lever 62 from the shoulder 62h on the bar 62, saidlever assuming the position indicated by dotted lines, Fig. 1. Owing tothe lever 27 and connecting parts, the mold 24 will be lifted, moving atthesame rate of speed as the plunger 20. As the plunger enters the mold24 the tripperfinger72 engages the tripper-finger76, and the arm 74 isthrown over into the path of the arm 53. This will tend te force the arm53 around, carrying with it the rod 42 and the key 52. The key 52 willbe brought around so as to coincide with the slot 50, whereupon thespring 4-8 will act to draw said key down through said opening, forcingthe supplemental plunger 41 into the position indicated in dotted lines,Fig. 4. This supplemental plunger advancing ahead of the main plungerwill act to distribute the body of clay within the mold so that when themain body of the plungerl comes into contact with said clay the claywill be forced up and around the space between the plunger and the mold,so as to form the saggar of a substantially uniform thickness. As theplunger continues to descend the supplemental plunger 41 is forced up asthe pressure increases, and the key 52 is forced up through the slot 50.Just as soon as the key passes beyond the upper face of the plate 49 thespring 55 will act to draw the arm 53 back to its normal position,carrying with it the key 52, which thereupon rests upon the upper faceof the plate 49 and locks said supplemental plunger 41 in its formerposition. Then the saggar has been formed in this manner, the plunger iswithdrawn and the mold 24 descends. As the plunger ascends and the molddescends the weight on the lever 83 will act to cause the movable bottom78 to rise, or where the locking-arm 89 is employed said movable bottomwill rise with the ascent of IOO IXO

the plunger. The said bottom 78 will continue to rise, the sleeve 82sliding up the standard 7 9 until the mold 24 strikes the pin S2 in. thesleeve 82, whereupon the further descent ol the mold will act te lowerthe bottom 78, or where the lockingarm 89 is employed said mold 24 inits descent will strike the beveled lug 92 of the locking-arm S9 andthrow said arm out so as to release the movable bottom 7S, when it willdescend to its normal position, resting upon the standard 79. Where theweighted lever is employed, however, it will not be necessary to usethis locking-arm 89, which may be swung out of the way, so as not tooperate except in case of the failure of the weighted lever to do itswerk. The movable bottom 7 8 will be carried up until the saggar is'free from the walls of the mold 24, whereupon said saggar may bereadily lifted from said bottom before the descent of said bottom takesplace. At the same time that the plunger ascends the lever G2, which hasbeen carried down with the plunger, will engage the shoulder 62h on thestationary bar 62, as clearly indicated in full lines in Fig. l, whichacts to hold the stripper 68 and holds the false bottom 40 andsupplemental plunger 4]. down within the saggar, so as to strip thesaggar `from the rising plunger, as indicated in Fig. l. The operatorthen releases lever 62, whereupon said lever 62 rises to the positionindicated in dotted lines, Fig. l, the false bottom 40 and supplementalplunger 41 being raised to their normal position, leaving the saggar inposition to be removed.

By the above construction provision is made for releasing thesupplemental plunger automatically, so that it advances ahead of themain plunger and acts to distribute the clay, while at the same time thedownward pressure on said supplemental plunger is taken up by thespring, and when the clay has been properly distributed to form thebottom oil? the saggar o'l substantially even thickness the supplementalplunger will be locked in position, so as to be flush with the bottom ofthe plunger, and will accordingly act in connection with said falsebottom to 'free the saggar `from the plunger.

What I claim is- 1. In apparatus lier forming saggars, or like hollowbowls, the combination with a suitable frame, of a mold, a plunger, asupplemental plunger moving simultaneously with said plunger, means `lorlowering said supplemental plunger beyond said plunger, and means `lierretaining said supplemental plunger in its elevated position.

2. In apparatus l'or forming saggars, or like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, a sup plementalplunger, means for automatically lowering said supplemental plungerbeyond said plunger, and means Vlor retaining said supplemental plungerin its elevated position.

3. In apparatus 'for forming saggars, or like hollow bowls, thecombination with a suitable frame, ol a mold, a plunger, a supplementalplunger, means for lowering said. supplemental plunger beyond saidplunger, and means for automatically locking said supplemental plungerin its elevated position.

4. In apparatus for forming saggars, or like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, a supplementalplunger, a spring adapted to force down said supplemental plunger,locking means for holding said supplemental plunger in place, and meansfor releasing said locking means.

5. In apparatus 'for forming saggars, and like hollow bowls, thecombination with a suitable lrame, of a mold, a plunger, a supplementalplunger, a spring adapted to force down said supplemental plunger, a rodconneeted to said supplemental plunger, a spring bearing down on saidsupplemental plunger', a locking-plate having an opening through whichsaid rod passes, a projection on said rod adapted to pass through saidopening at a certain position of said rod, and. means for turning saidrod.

6. In apparatus for forming saggars, and like hollow bowls, thecombination with a suitable frame, ol a mold, a plunger, a su pplemental plunger, a spring adapted to force down said supplementalplunger, a rod connected to said supplemental plunger,a spring bearingdown on said supplemental plunger, a locking-plate having an elongatedopening therein through which said rod passes, a projection on said rodadapted. to enter said opening, and means for turning said rod.

7. In apparatus lor forming saggars, and like hollow bowls, thecombination with a suitable frame, eli a mold, a plunger, a supplementalplunger, a spring adapted to force down said supplemental plunger, a rodconnected to said supplemental plunger, a spring bearing down on saidsupplemental plunger, a locking-plate having an elongated openingtherein through which said rod passes, a projection on said rod adaptedto enter said opening, an arm on said rod, and means for turning saidarm.

8. In apparatus Yfor forming sagg'ars, and like hollow bowls, thecombination with a suitable frame, ol a mold, a plunger, a supplementalplunger adapted to be lowered below said plunger, locking mechanism forretaining saidv supplemental plunger in its elevated position, and meansfor releasing said supplemental plunger by the movement oll said in oldand plunger.

Q. ln apparatus for forming saggars, and like hollow bowls, thecombination with a suitable frame, oi' a mold, a plunger, a sup- IISpleinental plunger adapted to be lowered below said plunger, lockingmechanism for i'etaining said supplemental plunger in its elevatedposition, tripping mechanism carried by said mold and plunger, andconnections between said tripping mechanism and said locking mechanismfor releasing saine.

10. ln apparatus for forming saggars, and like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, a supplementalplunger, a spring adapted to force down said supplemental plunger, a rodconnected to said supplemental plunger, a lockw ing-plate having anelongated opening therein through which said rod passes, a projection onsaid rod adapted to normally rest on said plate, an arm on said rod, apivotal arm on said mold, and means 'for throwing said swinging arm intocontact with said arm on said rod.

11. ln apparatus 'for forming saggars and like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, a supplementalplunger, a spring adapted to 'force down said supplemental plunger, arod connected to said supplemental plunger, a locking-plate having anelongated opening therein through which said rod passes, a projection onsaid rod adapted to normally rest on said plate, an arm on said'rod, atripper-arm on said plunger, a pivotal arm on said mold in the path ofsaid tripper-arin and adapted to be thrown into contact with said arm onsaid rod.

12. In apparatus for forming saggars, and like hollow bowls, thecombination with a suitable lframe, of a mold, a plunger, a supplementalplunger, a spring adapted to force down said supplemental plunger, a rodconnected to said supplemental plunger, a locking-plate having anelongated opening therein through which said rod passes, a projection onsaid rod adapted to normally rest on said plate, an arm on said rod, atripperarm on said plunger, a spring-actuated Alinger on saidtripper-arin, a pivotal arm on said mold, a spring-ringer on said arm inthe path of said lirst-named linger, whereby said pivotal arm is throwninto Contact with said arm on said rod.

13. In apparatus for forming saggars and like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, said mold andplunger moving in opposite directions, a movable bottom plate in saidinold i and a weighted lever connected to said bottom plate and adaptedto elevate same.

14. ln apparatus for forming saggars and like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, said mold andplunger moving in opposite directions, a movable bottom plate in saidmold, means or raising said bottom plate as the mold descends, and meansfor lowering said bottom plate by the descent of said mold.

15. ln apparat-us for forming saggars and like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, said niold andplunger moving in opposite directions, a movable bottom plate in saidmold, a weighted lever adapted to elevate said botto'm plate and aprojection carried by said movable bottom plate in the path of thedescending mold.

16. ln apparatus for forming saggars and like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, said mold andplunger moving in opposite directions, a movable bottom plate in saidmold, a standard upon which said bottom plate rests, a sleeve engagingsaid standard and connected to said bottom plate, and a weightedlever'adapted to elevate said bottom plate and means for lowering saidbottom plate by the descent of said mold` 17. ln apparatus for formingsaggars and like hollow bowls, the combination with a suitable frame, ofa mold, a plunger, said mold and plunger moving in opposite directions,a movable bottom plate in said mold, a swinging latch-bar on saidplunger, a projection carried by said bottom plate adapted to be engagedby said latch-bar, and means for releasing said latch-bar by the descentof said mold.

18. ln apparatus 'for forming saggars and like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, said mold andplunger moving in opposite directions, a movable bottom plate in saidmold, a swinging latch-bar on said plunger, beveled lugs on saidlatch-bar, a projection carried by said movable bottom plate adapted tobe engaged by said lugs, said lugs being in the path of the descendingmold.

19. ln apparatus for forming saggars, and

like hollow bowls, the combination with a suitable frame, of a mold, aplunger, stripping mechanism carried by said plunger, and means forholding said stripping mechanism stationary as the plunger ascends.

20. ln apparatus for forming saggars, and like hollow bowls, thecombination with a suitable frame, of a mold, a plungerk strippingmechanism, a lever connected to said stripping mechanism and to saidplunger, and a stop in the path of said lever.

21. ln apparatus for forming saggars, and like hollow bowls, thecombination with a suitable frame, of a mold, a plunger, strippingmechanism, a lever connected to said stripping mechanism and to saidplunger, and a shoulder on said frame with which said lever is adaptedto engage.

22. ln apparatus ttor forming saggars, and like hollow bowls, thecombination with a lOC iof

suitable frame, of a mold, a plunger, a stationary bottom, a movablebottom portion, and means for lowering said movable portion by tllemovement of said mold.

L3. In apparatus for forming saggars, and like hollow bowls, thecombination With a suitable Yframe, of a mold, a plunger, a sta tionarybottom in said mold, a movable bottom portion, and a projection on saidmov able bottom portion in the path of said mold. Io

In testimonyr whereof I, the said IVILLIAM POLK, have hereunto set myhand.

WILLIAM FOLK. Witnesses 1 Rom. D. ToTTnN, GEORGE H. RANKIN.

